If you want my take on things...go with the 148 Straight with nothing done to it and see if that works out. Than as you start getting the hang of things start using the hybrids and than you can start mis-matching as you go.

Remember all phones are different and will react different per individual so keep that in mind. May work great for one but for the other it may really suck. Good Luck with everything and keep us posted.

As far as straight OS's I would recommend .132 or .148 as these seem to be the best. As for hybrids BBcrackman's v5.1 is the best I have tried. With any of these you can't go wrong especially coming from .75. It will feel like a brand new phone.